Home / 20,501,453.53-28,292,056.74-11,209,623.20

Finding the Fourth Proportional to 20,501,453.53, 28,292,056.74 and 11,209,623.20

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Solution

The fourth proportional to 20,501,453.53, 28,292,056.74 and 11,209,623.20 is: 15,469,307.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,453.53 : 28,292,056.74 = 11,209,623.20 : x
  2. Step 2: Convert to fraction form
    20,501,453.53/28,292,056.74 = 11,209,623.20/x
  3. Step 3: Cross multiply
    20,501,453.53x = 28,292,056.74 × 11,209,623.20
  4. Step 4: Simplify right side
    20,501,453.53x = 317,143,295,410,912
  5. Step 5: Solve for x
    x = 317,143,295,410,912/20,501,453.53
  6. Step 6: Final answer
    x = 15,469,307.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.